Headset



FIG. 1 is a perspective view of a headset showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of the environmental structure of the headset is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a headset, as shown and described. 